Just to be safe, you can backup your Browser Profile,cookies,bookmarks etc with
You Must Be Registered and Logged On To View "URL" BBCode Contents...
(supports Firefox, Chrome, and many others)

or
You Must Be Registered and Logged On To View "URL" BBCode Contents...
(for Firefox).

I use Mozbackup, and
You Must Be Registered and Logged On To View "URL" BBCode Contents...
for Firefox and Chrome. (you need to register for a free account)